The Volcano Forge is an extremely helpful ... drawing your attention to the importance of this egg-shaped stone. Geodes, by themselves, aren't the important part of that though, and what matters ...

Oregon's state rock is celebrating its 60th anniversary this year. Here's everything to know about the thunderegg and where ...

Along with Ametista do Sul in southern Brazil, these regions are the world’s leading mining districts for gems which come from volcanic lava, such as amethyst and agate geodes.